808216120

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{227027}}^1$

素因数の和:227127

約数の個数: 32

約数和(自身を含む): 1838926800

約数和(自身を除く): 1030710680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 227027, 454054, 908108, 1135135, 1816216, 2270270, 4540540, 9081080, 20205403, 40410806, 80821612, 101027015, 161643224, 202054030, 404108060, 808216120]

約数ペア:

[(1, 808216120), (2, 404108060), (4, 202054030), (5, 161643224), (8, 101027015), (10, 80821612), (20, 40410806), (40, 20205403), (89, 9081080), (178, 4540540), (356, 2270270), (445, 1816216), (712, 1135135), (890, 908108), (1780, 454054), (3560, 227027)]